The third object is the staff that Josephine drops, though it is sometimes in the locked cheat at the back of the room. Run your mouse over the area where she was defeated; if it is hidden behind a wall, etc. the alt key will not show its description, but a little diligence and a slow mouse should find it. Do you have a recent save you could re-load and try again?
If all else fails, check out;
Lost Items - guide and directory of inventory files
